Astronomik SII 12nm CCD MaxFR 31mm Filter for Fast Systems visual observing Range: Up to 300 meters

Range: Up to 300 meters in obstructed environments

Minimal star dimming with no loss of fine detail

Practical distance depends on the invironment

The charging contacts are manufactured from stainless steel

Astronomik SII 12nm CCD MaxFR 31mm Filter for Fast Systems visual observing Range: Up to 300 metersAstronomik SII 12nm CCD MaxFR 31mm MaxFR Astronomik photographic narrowband emissionline filters for fast optical systems. There is an ever growing demand for filters suitable for extremely fast optical systems like Celestrons RASA and the Epsilon Astrographs made by Takahashi. Our novel MaxFR emission line filters are suitable up to very fast focal ratios. The new Astronomik MaxFR series of narrowband emissionline filters is perfectly matched to the